Description
Overview
Crossfade is an active conversion of an existing three-way. Going active removes the passive crossover’s compromises and opens up linear-phase FIR filtering and proper room correction — at the cost of three amplifier channels per side and a lot of measurement.
This is an ongoing project; the FIR crossovers are designed and loading, with final voicing still to come.
Why active
- Independent level, delay and EQ per driver
- Linear-phase crossovers with no passive insertion loss
- Room correction applied where it actually helps — below the transition frequency
Specifications
| Processor | miniDSP Flex 8-channel |
|---|---|
| Crossovers | FIR linear-phase |
| Channels | 6 3-way stereo |
|---|---|
| Target | Harman-style in-room |
Bill of Materials
| Component | Qty | Unit | Unit Price | Total | Notes | Buy |
|---|---|---|---|---|---|---|
| miniDSP Flex (8-channel) | 1 | €230.00 | €230.00 | |||
| 6-channel Class-D amplifier | 1 | €70.00 | €70.00 | |||
| Interconnects and direct driver leads | 1 | €20.00 | €20.00 |
Build Guide
Bypass the passive crossover
2 hMeasure each driver in place
3 h- Measure at the listening position, not on-axis at 1 m — you are correcting the system in the room.
Design FIR crossovers
5 hRoom correction and voicing
Discussion
No discussions yet — ask a question or share your progress with the build.